Adage Capital Partners’s Waystar Holding Corp WAY Stock Holding History

Adage Capital Partners’s Portfolio WAY Stock Details WAY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$7.35M	Sell	305,050 -800,404	-72%	-$21.2M	0.01%	737
2025 Q4	$36.2M	Buy	1,105,454 +421,220	+62%	+$15M	0.05%	324
2025 Q3	$25.9M	Buy	684,234 +580,234	+558%	+$21.5M	0.04%	397
2025 Q2	$4.25M	Sell	104,000 -128,000	-55%	-$4.93M	0.01%	722
2025 Q1	$8.67M	Sell	232,000 -349,044	-60%	-$13.8M	0.02%	613
2024 Q4	$21.3M	Sell	581,044 -26,951	-4%	-$829K	0.04%	429
2024 Q3	$17M	Buy	607,995 +7,995	+1%	+$197K	0.03%	497
2024 Q2	$12.9M	Buy	+600,000	New	+$13M	0.02%	552

Other funds holding WAY

EFM

EQT Fund Management Luxembourg $1.02B AUM

Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BCI

Bain Capital Investors Boston, Massachusetts $3.27B AUM 3.23% 1-Year Est. Return

Advent International Boston, Massachusetts $4.24B AUM 4.24% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

GAM

Goldentree Asset Management New York $1.69B AUM 10.69% 1-Year Est. Return

Adage Capital Partners's WAY Position: Q1 2026 in Review

Adage Capital Partners reduced its Waystar Holding Corp (WAY) stake by 72% in Q1 2026, selling an estimated $21.2M and leaving 305,050 shares worth $7.35M. The position accounts for 0.01% of the portfolio, ranked #737.

Adage Capital Partners first reported a position in WAY in Q2 2024 and has held it in 8 quarters since. The position peaked at $36.2M in Q4 2025. 305 funds tracked by Wall St. Rank hold WAY as of Q1 2026.

Adage Capital Partners held 305,050 shares of Waystar Holding Corp worth $7.35M as of Q1 2026.
Adage Capital Partners sold 800,404 Waystar Holding Corp shares in Q1 2026, an estimated $21.2M.
Waystar Holding Corp made up 0.01% of Adage Capital Partners's portfolio in Q1 2026, its #737 holding.
Adage Capital Partners first reported a position in Waystar Holding Corp in Q2 2024 and has held it in 8 quarters since.
Adage Capital Partners's Waystar Holding Corp position peaked at $36.2M in Q4 2025.
305 funds tracked by Wall St. Rank held Waystar Holding Corp as of Q1 2026.

Based on Adage Capital Partners's 13F filing for Q1 2026, filed 15 May 2026.